CN201906913U - Arc length control device for high-speed submerged arc welding process - Google Patents
Arc length control device for high-speed submerged arc welding process Download PDFInfo
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- CN201906913U CN201906913U CN2011200080313U CN201120008031U CN201906913U CN 201906913 U CN201906913 U CN 201906913U CN 2011200080313 U CN2011200080313 U CN 2011200080313U CN 201120008031 U CN201120008031 U CN 201120008031U CN 201906913 U CN201906913 U CN 201906913U
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- arc welding
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Abstract
The utility model discloses an arc length control device for a high-speed submerged arc welding process, which comprises an arc welding power supply, an arc voltage detection feedback circuit, a wire feeding speed control circuit, a drive circuit, a power supply circuit, a reset circuit, a crystal oscillator driver, an advanced RISC machines (ARM) controller, a wire feeding motor and a contact tip, wherein the arc welding power supply is connected with one end of the arc voltage detection feedback circuit, and the other end of the arc voltage detection feedback circuit is connected with the contact tip; the crystal oscillator driver, the power supply circuit and the reset circuit are respectively connected to the ARM controller, and one end of the wire feeding speed control circuit is electrically connected with the drive circuit; the other end of the wire feeding speed control circuit is electrically connected with the wire feeding motor, and the other end of the wire feeding motor is electrically connected with the contact tip; and an analog/digital (A/D)input end of the ARM controller is connected with one end of the arc voltage detection feedback circuit. The arc length device has high control precision, strong anti-interference ability, and stable and reliable work, and the requirements of the high speed submerged arc welding process can be met.
Description
Technical field
The utility model relates to a kind of welding controller, particularly a kind of high speed submerged arc welding process arc length control device.
Background technology
Thick welding wire submerged-arc welding arc length self regulating action is more weak, depends merely on welding wire arc length self regulating action during welding and can not keep the stable of electric arc, must guarantee the stable of electric arc to the control of electric arc arc length.Simulation control is adopted in the control of tradition submerged arc welding process electric arc arc length, its control circuit complexity, poor reliability, carry out the limited in one's ability of complex process, component number is many, and the parameter of control system is by the parameter decision of discrete elements such as resistance, electric capacity, the debugging complexity of control system, very flexible; The parameter distribution of resistance, electric capacity influences the uniformity of control system simultaneously, and the poor stability of parameter is as the stability of temperature drift effects control system; Limitation on this external cause hardware is realized, control algolithm only can adopt methods such as PID adjusting, and difficulty can not adopt some advanced control algolithms because of realizing or implement very with analog circuit.The digitlization of Control Welding Process and software implementation are one of optimal methods that realizes the control of electric arc arc length, not only make conventional pid algorithm faster, more reliable, and make the advanced intelligent control theory use simpler, better effects if.Present submerged-arc welding arc length digitalization control method and the device that occurs, the main Single-chip Controlling that adopts, single-chip microcomputer is mainly finished the given function and the programme-control of control signal in the single-chip computer control system, though control system has realized digitlization signal to certain portions, but be subjected to the restriction of singlechip disposal ability, the feedback signal of control system is handled and PWM has still adopted analog circuit, and is often not competent in the big system of real-time, data processing amount.Therefore, digitized characteristics do not find full expression in the control of submerged-arc welding electric arc arc length.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of high speed submerged arc welding process arc length control device that can solve the stable control of high speed submerged arc welding process electric arc arc length.
The technical scheme that the utility model solves the problems of the technologies described above is: comprise Arc Welding Power, arc voltage detects feedback circuit, the wire feed alignment circuit, drive circuit, power circuit, reset circuit, the crystal oscillator driver, the ARM controller, wire feeding motor and ignition tip, described Arc Welding Power is connected with the end that arc voltage detects feedback circuit, described arc voltage detects the feedback circuit other end and is connected with ignition tip, described crystal oscillator driver, power circuit and reset circuit are connected respectively on the ARM controller, described wire feed alignment circuit one end is electrically connected with drive circuit, the other end is electrically connected with wire feeding motor, the other end of described wire feeding motor is electrically connected with ignition tip, and the A/D input of ARM controller is connected with the end that arc voltage detects feedback circuit.
Further, described ARM controller is LPC2119 or LPC2134 microcontroller.
Further, described wire feeding motor is a direct current generator.
The beneficial effects of the utility model are: the utility model adopts the ARM chip as the control core devices, designed submerged-arc welding arc length control system is controlled in real time by regulating wire feed rate realization electric arc arc length, arc stability, welding quality are good, have good output characteristics and can adjust according to demand, realized nonlinear Control well.It is simple that this device has a circuit, the control accuracy height, and characteristics such as antijamming capability is strong, and is easy to operate, and working stability is reliable have improved the combination property and the automatic degree of welding machine, can satisfy the requirement of high speed submerged welding process.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a wire feed alignment circuit schematic diagram of the present utility model.
Fig. 3 is an arc detection circuitry schematic diagram of the present utility model.
Fig. 4 is an ARM control circuit schematic diagram of the present utility model.
Fig. 5 is a fuzzy control FB(flow block) of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
As shown in Figure 1, a kind of high speed submerged arc welding process arc length control device, comprise Arc Welding Power, arc voltage detects feedback circuit, the wire feed alignment circuit, drive circuit, power circuit, reset circuit, the crystal oscillator driver, the ARM controller, wire feeding motor and ignition tip 1, described Arc Welding Power is connected with the end that arc voltage detects feedback circuit, described arc voltage detects the feedback circuit other end and is connected with ignition tip, described crystal oscillator driver, power circuit and reset circuit are connected respectively on the ARM controller, described wire feed alignment circuit one end is electrically connected with drive circuit, the other end is electrically connected with wire feeding motor, the other end of described wire feeding motor is electrically connected with ignition tip 1, and the A/D input of ARM controller is connected with the end that arc voltage detects feedback circuit.
As shown in Figure 2, for wire feed alignment circuit schematic diagram of the present utility model, in circuit, input voltage
For the DC voltage of ripple is arranged, offer MOSFET then behind rectifying and wave-filtering, the driving signal that MOSFET is provided by the ARM controller and be in switch work is converted to pulse voltage with DC voltage, obtains output voltage by outputting inductance
, again by dividing potential drop rear drive wire feeding motor,, just can change the size of wire feeding motor driving voltage, and then the stable of arc length kept in the change of realization wire feed rate by regulating the output duty cycle that drives signal.
As shown in Figure 3, arc voltage detects feedback circuit and is connected with the ignition tip end, voltage through dividing potential drop, follow, isolate the feedback voltage signal that obtains 0-+3.3V AIN0 input channel by optocoupler 521-2 after the filtering to ARM.
As shown in Figure 4, the ARM microcontroller adopts 32 high speed ARM embedded microprocessors and miniperipheral circuit thereof, and the UC/OS-II embedded real-time operating system that solidifies in the ARM chip is the operating system platform of elevator frequency converter, interconnected by ARM chip and auxiliary circuit and forms.According to the electric arc arc voltage that detects, on the UC/OS-II embedded real-time operating system, finish data operation and processing, exporting adjustable pwm signal through one road PWM pin of ARM microcontroller, and removing to control MOSFET by drive circuit and turn on and off.
As shown in Figure 5, the fuzzy control control table that at first off-line is obtained is deposited among the ARM controller Flash by the row order.In actual arc arc length control procedure, the sampled voltage signal is made average treatment, carry out the calculating of deviation and the inquiry of fuzzy control table then, specifically comprise following a few step work:
1. the arc voltage of in each cycle, sampling
, and ask for actual instant deviation according to given arc voltage
And deviation variation rate
2. with reality
With
Multiply by quantizing factor respectively
With
, it is needed to obtain tabling look-up of corresponding domain element sign
With
Value, that is:
With
With
Look for the row and column of control table by fuzzy control control, domain value that can controlled amount
4. the domain value of the controlled quentity controlled variable that obtains of will tabling look-up
Multiply by scale factor
, that is:
Just can obtain actual controlled quentity controlled variable thus
, and then the PWM output duty cycle of control ARM, to realize that output removes to control the driving voltage (corresponding to wire feed rate) of controlled device wire feeding motor to the control of wire feeding motor armature voltage.
The utility model employing ARM(LPC2134) chip is as the control core devices, with the UC/OS-II embedded real-time operating system is the operating system platform of high speed submerged-arc welding electric arc arc voltage, in order to realize that the high speed submerged arc welding process is carried out stability control owing to complex working condition causes the uncertainty variation of arc voltage, make full use of ARM(LPC2134) superior function of chip aspect embedded Control, adopt modularization, transplantable method for designing, realize the digital chemical control system of arc length stability by software programming.
Claims (3)
1. high speed submerged arc welding process arc length control device, it is characterized in that, comprise Arc Welding Power, arc voltage detects feedback circuit, the wire feed alignment circuit, drive circuit, power circuit, reset circuit, the crystal oscillator driver, the ARM controller, wire feeding motor and ignition tip, described Arc Welding Power is connected with the end that arc voltage detects feedback circuit, described arc voltage detects the feedback circuit other end and is connected with ignition tip, described crystal oscillator driver, power circuit and reset circuit are connected respectively on the ARM controller, described wire feed alignment circuit one end is electrically connected with drive circuit, the other end is electrically connected with wire feeding motor, the other end of described wire feeding motor is electrically connected with ignition tip, and the A/D input of ARM controller is connected with the end that arc voltage detects feedback circuit.
2. high speed submerged arc welding process arc length control device according to claim 1 is characterized in that described ARM controller is LPC2119 or LPC2134 microcontroller.
3. high speed submerged arc welding process arc length control device according to claim 1 is characterized in that described wire feeding motor is a direct current generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200080313U CN201906913U (en) | 2011-01-12 | 2011-01-12 | Arc length control device for high-speed submerged arc welding process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200080313U CN201906913U (en) | 2011-01-12 | 2011-01-12 | Arc length control device for high-speed submerged arc welding process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201906913U true CN201906913U (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200080313U Expired - Fee Related CN201906913U (en) | 2011-01-12 | 2011-01-12 | Arc length control device for high-speed submerged arc welding process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084706A (en) * | 2011-10-31 | 2013-05-08 | 株式会社大亨 | Welding system and control device |
| CN103100785A (en) * | 2013-02-28 | 2013-05-15 | 广州市长胜焊接设备实业有限公司 | Digitization inversion arc welding machine output pole short circuit automatic protection system |
| CN105149732A (en) * | 2015-10-14 | 2015-12-16 | 刘昇澔 | Consumable electrode welder and welding method thereof |
| CN106735738A (en) * | 2016-12-30 | 2017-05-31 | 华南理工大学 | A kind of deeply molten TIG welderings arc length detecting and controlling system of lockhole |
| CN106881516A (en) * | 2017-02-22 | 2017-06-23 | 重庆理工大学 | A kind of method that utilization arc voltage signal monitors electric arc arc length |
| CN109128438A (en) * | 2018-10-10 | 2019-01-04 | 滁州岳众汽车零部件有限公司 | A kind of weldment regulating system for welding |
| CN114769817A (en) * | 2022-05-24 | 2022-07-22 | 深圳市佳士科技股份有限公司 | Submerged arc welding control method, device, equipment and storage medium |
-
2011
- 2011-01-12 CN CN2011200080313U patent/CN201906913U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084706A (en) * | 2011-10-31 | 2013-05-08 | 株式会社大亨 | Welding system and control device |
| CN103084706B (en) * | 2011-10-31 | 2016-08-31 | 株式会社大亨 | Welding system and control device |
| CN103100785A (en) * | 2013-02-28 | 2013-05-15 | 广州市长胜焊接设备实业有限公司 | Digitization inversion arc welding machine output pole short circuit automatic protection system |
| CN103100785B (en) * | 2013-02-28 | 2015-11-25 | 广州长胜机电有限公司 | A kind of digitlization inverter arc welding machine output stage short circuit automatic protective system |
| CN105149732A (en) * | 2015-10-14 | 2015-12-16 | 刘昇澔 | Consumable electrode welder and welding method thereof |
| WO2017063253A1 (en) * | 2015-10-14 | 2017-04-20 | 刘昇澔 | Consumable electrode welder and welding method thereof |
| CN106735738A (en) * | 2016-12-30 | 2017-05-31 | 华南理工大学 | A kind of deeply molten TIG welderings arc length detecting and controlling system of lockhole |
| CN106735738B (en) * | 2016-12-30 | 2018-10-09 | 华南理工大学 | A kind of deeply molten TIG welderings arc length detecting and controlling system of lockhole |
| CN106881516A (en) * | 2017-02-22 | 2017-06-23 | 重庆理工大学 | A kind of method that utilization arc voltage signal monitors electric arc arc length |
| CN106881516B (en) * | 2017-02-22 | 2018-05-01 | 重庆理工大学 | A kind of method using arc voltage signal monitoring electric arc arc length |
| CN109128438A (en) * | 2018-10-10 | 2019-01-04 | 滁州岳众汽车零部件有限公司 | A kind of weldment regulating system for welding |
| CN114769817A (en) * | 2022-05-24 | 2022-07-22 | 深圳市佳士科技股份有限公司 | Submerged arc welding control method, device, equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan fortune Bicycle Industry Co., Ltd. Assignor: Hunan Sci-Tech Univ. Contract record no.: 2012430000133 Denomination of utility model: Arc length control device for high-speed submerged arc welding process Granted publication date: 20110727 License type: Exclusive License Record date: 20120612 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20140112 |